<template>
  <a-layout>
    <a-layout-content
        :style="{
        background: '#fff',
        padding: '24px',
        margin: 0,
        minHeight: '280px',
      }"
    >
      <p>
        <a-form
            layout="inline"
            :model="param"
        >
          <a-form-item>
            <a-button type="primary" @click="handleQuery()">
              查询
            </a-button>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
          :columns="columns"
          :row-key="(record) => record.id"
          :data-source="level1"
          :loading="loading"
          :pagination="false"
      >
        <template #cover="{ text }">
          <img v-if="text" :src="text" alt="avatar" />
        </template>
        <template #action="{ record }">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)"> 编辑 </a-button>
            <a-popconfirm
                title="删除后不可恢复，确认删除?"
                ok-text="是"
                cancel-text="否"
                @confirm="handleDelete(record.id)"
            >
              <a-button type="primary" danger> 删除 </a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </a-table>
    </a-layout-content>
  </a-layout>

  <a-modal
      title="分类表单"
      v-model:visible="modalVisible"
      :confirm-loading="modalLoading"
      @ok="handleModalOk"
  >
    <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
      <a-form-item label="名称">
        <a-input v-model:value="category.name" />
      </a-form-item>
      <a-form-item label="父分类">
        <a-select
            ref="select"
            v-model:value="category.parent"
        >
          <a-select-option value="0">
            无
          </a-select-option>
          <a-select-option :value="item.id" v-for="item in level1" :key="item.id" :disabled="item.id === category.id">
            {{ item.name }}
          </a-select-option>
        </a-select>
      </a-form-item>
      <a-form-item label="顺序">
        <a-input v-model:value="category.sort" />
      </a-form-item>
    </a-form>
  </a-modal>
</template>

<script lang="ts">
import { defineComponent, onMounted, ref } from "vue";
import axios from "axios";
import { message } from "ant-design-vue";
import { Tool } from '../../util/tool';

export default defineComponent({
  name: "AdminCategory",
  setup() {
    const param = ref()
    param.value = {}
    const categorys = ref()
    const loading = ref(false)

    const columns = [
      {
        title: "名称",
        dataIndex: "name",
      },
      {
        title: "父分类",
        dataIndex: "parent",
      },
      {
        title: "顺序",
        dataIndex: "sort",
      },
      {
        title: "Action",
        dataIndex: "action",
        slots: { customRender: "action" },
      },
    ];

    /**
     * 一级分类树，children属性就是二级分类
     * [{
     *  id: "",
     *  name: "",
     *  children: [{
     *    id: "",
     *    name: "",
     *  }]
     * }]
     */
    const level1 = ref() // 一级分类树，children属性就是二级分类

    /**
     * 数据查询
     */
    const handleQuery = () => {
      loading.value = true;
      // 注意：axios.get 有两种方式传参，一：路由拼接 二：参数 { params:  } 这个 key 必须为 params
      axios
          .get("/category/all")
          .then((res) => {
            loading.value = false;
            const data = res.data;
            if (data.success) {
              categorys.value = data.content;
              console.log("原始数组：", categorys.value);

              level1.value = [];
              level1.value = Tool.array2Tree(categorys.value, 0);
              console.log("树形结构：", level1.value);
            } else {
              message.error(data.message);
            }
          });
    };

    /**
     * 表单
     */
    const category = ref();
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const handleModalOk = () => {
      modalLoading.value = true;
      axios.post("/category/save", category.value).then((res) => {
        modalLoading.value = false;
        const data = res.data;
        if (data.success) {
          modalVisible.value = false;

          // 重新加载列表
          handleQuery();
        } else {
          message.error(data.message);
        }
      });
    };

    /**
     * 编辑
     */
    const edit = (record: any) => {
      modalVisible.value = true;
      category.value = Tool.copy(record);
    };

    /**
     * 新增
     */
    const add = () => {
      modalVisible.value = true;
      category.value = {};
    };

    /**
     * 删除
     */
    const handleDelete = (id: number) => {
      axios.delete("/category/delete/" + id).then((res) => {
        const data = res.data;
        if (data.success) {
          // 重新加载列表
          handleQuery();
        }
      });
    };

    onMounted(() => {
      handleQuery();
    });

    return {
      // categorys,
      level1,
      columns,
      loading,
      param,

      edit,
      add,
      handleDelete,
      handleQuery,

      modalVisible,
      modalLoading,
      handleModalOk,
      category,
    };
  },
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>
